P0C20
Electric/Auxiliary Transmission Fluid Pump Phase U-V-W Circuit/Open
P0C20 is an OBD-II diagnostic trouble code meaning: Electric/Auxiliary Transmission Fluid Pump Phase U-V-W Circuit/Open. Common causes: open circuit in the pump phase circuit, electrical transmission fluid pump malfunction. Estimated repair cost: $56–167.
Symptoms
- Check Engine light comes on
- Transmission transition to emergency mode
- Reduced vehicle performance
- Unusual noises from the transmission area
- Gear shifting problems
Causes
- Open circuit in the pump phase circuit
- Electrical transmission fluid pump malfunction
- Problems with the wiring harness or connectors
- Transmission control module (TCM) failure
- Short circuit in the circuit
How to Fix
- Check the integrity of the phase circuit U-V-W
- Inspect the wiring harness and connectors for damage.
- Check the functionality of the electric pump
- Test the transmission control module (TCM)
- Replace faulty components
Related codes
Error P0C20 by Vehicle Brand
FAQ
What does the P0C20 code mean?
P0C20 is an OBD-II diagnostic trouble code that indicates: Electric/Auxiliary Transmission Fluid Pump Phase U-V-W Circuit/Open
What causes a P0C20 error code?
The most common causes of P0C20 include: Open circuit in the pump phase circuit; Electrical transmission fluid pump malfunction; Problems with the wiring harness or connectors; Transmission control module (TCM) failure.
How do I fix a P0C20 diagnostic trouble code?
To fix P0C20: Check the integrity of the phase circuit U-V-W. Inspect the wiring harness and connectors for damage.. Check the functionality of the electric pump. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0C20?
Limited driving only, diagnose soon
How much does it cost to fix P0C20?
The estimated repair cost for P0C20 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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